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jok3333 [9.3K]
2 years ago
8

Which of the following required a protein channel (carrier) to allow molecules to cross the cell membrane (plasma membrane)? (Hi

nt: multiple answers)
A. facilitated diffusion
B. osmosis
C. active transport
D. diffusion
Biology
1 answer:
Reptile [31]2 years ago
4 0

Answer:

the answer would be c

Explanation:

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In multicellular organisms, specialized cells perform specialized functions. Which of the following cells is specialized for eng
Sav [38]
The white blood cells are responsible for engulfing foreign material such as debris and microorganisms in the blood and other tissues. There are types of white blood cells that are specialized in phagocytosis, these are the: (1) neutrophils and the (2) macrophages.

<em>Neutrophils are more abundant in acute inflammation and marcophages are more significant in chronic inflammation.</em>
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3 years ago
I will mark as the brainliest answer​
yuradex [85]
1) Weather services gives up to 8 hours of watch time because its just a prediction and might not be accurate

2) Necessary precautions is when there is a dangerous weather alert coming towards you and you need to go for safety

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7 0
3 years ago
Imagine you are a student trying to decode the genetic code. An artificial mRNA molecule consisting of poly-CA (5ʹ... CACACACACA
Semmy [17]

Answer:

ACA: Threonine

CAC: Histidine

Explanation:

To answer this question we need to remember that the ribosome reads every three bases or 'codon' in order to assign the right tRNA carrying the amino acid.

In the first artificial mRNA we see two patterns of three letter:

CAC and ACA.

In the second artificial mRNA we are able to identify three different patterns:

CAA

AAC

ACA

And they repeat, so we end with three different polypeptides: polythreonine, polyglutamine and polyasparagine. This will depend on the initial letter the ribosome starts reading.

The only amino acid that repeats in both artificial mRNAs is Threonine,  and we see its pattern ACA also repeated.

So, we could assign this codon (ACA) to threonine.

We can then assume that the pattern CAC codifies for histidine since we only get this two polypeptides in the first mRNA.

Lastly with the information provided we cannot determine the codons AAC and CAA for glutamine or asparagine. We would need further experiments.

5 0
3 years ago
What are some characteristics of the type of khoomii singing known as kargyraa?
Ostrovityanka [42]

Answer:

1. It produces a very deep sound.

2. It combines the vocal and vestibular folds at the same time.

3. It causes the vibration of the vestibular folds. A vibration cycle culminates at the second vibration.

4. There are basically two types, namely the Dag and Xovu styles.

5. It resembles a Tibetan Buddhist chant.

Explanation:

Khoomii, also known as Tuvan throat singing is a way of singing mostly characterized by the production of deep sounds and vibrations. A basic pitch which is supplemented by another pitch combine to produce the sound.  It is sung by the locals in Siberia and Tuva.

Kargyraa is one of the four forms of this song and it typically involves the production of deep sounds and some vibrations of the vestibular folds at times. There are two basic types which are the Dag and Xovu. It also has a similarity to the chant produced by the Tibetan Buddhists.

5 0
3 years ago
Blood, muscle, and bone cells are examples of _____. specialized cells. tissues. organs. plant cells.
Assoli18 [71]
All of the mentioned types of cells here - blood, muscle and bone cells represent specialized cells which have a different role in your system and with that also differently affect the optimal funcitoning of our body. With any of these lacking, we would witness a loss of bodily function. . 
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3 years ago
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